Guayama Municipio, PR
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against other tracked counties rather than against these fixed caps.
Environmental data for Guayama Municipio in Puerto Rico · Population: 35,845
TRI sites such as Aes Puerto Rico LP; Baxter Healthcare of Puerto Rico LLC; Prepa-Jobos Gas Turbines Power Plant; SDWIS systems such as GUAYAMA URBANO; CIMARRONA; CIMARRONA; NPL sites such as Fibers Public Supply Wells anchor Guayama Municipio, PR's EPA extract. Derived burden score 39/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Guayama Municipio include GUAYAMA URBANO; CIMARRONA; LOS BARROS, while Aes Puerto Rico LP leads reported TRI pounds among local Form R filers. AQS median AQI 15 / peak 53 in 2024.
Burden score 39/100 (Moderate Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Guayama Municipio -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Guayama Municipio, PR: EPA TRI 2023 reporting year
Same facilities, both years
-29.4%
3 facilities that filed in 2022 and 2023
Whole inventory
-29.4%
1.3 million lb → 896.3 thousand lb, every facility that filed
- Guayama Municipio, PR's total reported releases fell from 1.3 million lb in 2022 to 896.3 thousand lb in 2023, based on EPA TRI filings.
- Guayama Municipio, PR's off-site transfers fell from 911.0 thousand lb in 2022 to 591.4 thousand lb in 2023, based on EPA TRI filings.
- Guayama Municipio, PR's air releases fell from 358.5 thousand lb in 2022 to 304.9 thousand lb in 2023, based on EPA TRI filings.
- Guayama Municipio, PR's chemicals reported fell from 22 in 2022 to 21 in 2023, based on EPA TRI filings.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 51 (98%) | 1 | 0 | 53 |
| 2023 | 57 (97%) | 2 | 0 | 55 |
| 2022 | 65 (97%) | 2 | 0 | 67 |
| 2021 | 39 (72%) | 15 | 0 | 77 |
| 2020 | 26 (76%) | 8 | 0 | 82 |
Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Puerto Rico, see the EPA's AirNow.gov.
Water Systems (4)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| GUAYAMA URBANO | 37,076 | 65 |
| CIMARRONA | 2,411 | 2 |
| CIMARRONA | 2,005 | 0 |
| LOS BARROS | 275 | 3 |
TRI Facilities (3)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Aes Puerto Rico LP | 6.5M lbs |
| 2 | Baxter Healthcare of Puerto Rico LLC | 115.7K lbs |
| 3 | Prepa-Jobos Gas Turbines Power Plant | 98 lbs |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Fibers Public Supply Wells | NPL Site | 35.34 |
Cities in Guayama Municipio (2)
Frequently Asked Questions
What is the environmental risk level in Guayama Municipio, Puerto Rico? ▼
Are there Superfund sites in Guayama Municipio? ▼
How many toxic release facilities are in Guayama Municipio? ▼
What is the air quality in Guayama Municipio? ▼
Is the drinking water safe in Guayama Municipio? ▼
What environmental agencies cover Guayama Municipio? ▼
What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.